Add resp msg in create conneciton obj api

[Roshan-Mehta]

Changes

Create connection obj API was returning nil in every case, it was causing issue in wasm. In this PR, I have added some response message to API.

Fixes

Tests

Tasks to complete before merging PR:

• Ensure system tests are passing. If not Run them manually to check for any regressions 📋
• Do any new system tests need added to test this change? do any existing system tests need updated? If so create a PR at 0chain/system_test
• Merge your system tests PR to master AFTER merging this PR

Associated PRs (Link as appropriate):

• 0chain:
• gosdk:
• system_test:
• zboxcli:
• zwalletcli:
• Other: ...

[codecov-commenter]

Codecov Report

Merging #1123 (898d4b4) into staging (5c674bc) will decrease coverage by 0.02%.
The diff coverage is 0.00%.

❗ Your organization is not using the GitHub App Integration. As a result you may experience degraded service beginning May 15th. Please install the Github App Integration for your organization. Read more.

@@             Coverage Diff             @@
##           staging    #1123      +/-   ##
===========================================
- Coverage    26.49%   26.48%   -0.02%     
===========================================
  Files           80       80              
  Lines         9034     9038       +4     
===========================================
  Hits          2394     2394              
- Misses        6332     6336       +4     
  Partials       308      308              

Flag	Coverage Δ
Unit-Tests	26.48% <0.00%> (-0.02%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
code/go/0chain.net/blobbercore/handler/handler.go	59.47% <0.00%> (ø)
...et/blobbercore/handler/object_operation_handler.go	22.07% <0.00%> (-0.08%)	⬇️

[dabasov]

lgtm

[service-0chain]

Manual system tests [cancelled] with the following config

config	value
tests skipped	false
system-tests	master
gosdk	NOT OVERRIDDEN
zboxcli	staging
zwalletcli	staging
0chain	staging
blobber	fix/send-resp-create_connection
authorizer	staging
0box	staging
0dns	staging